CN101442849B - Transparent conductor - Google Patents
Transparent conductor Download PDFInfo
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- CN101442849B CN101442849B CN2008102139780A CN200810213978A CN101442849B CN 101442849 B CN101442849 B CN 101442849B CN 2008102139780 A CN2008102139780 A CN 2008102139780A CN 200810213978 A CN200810213978 A CN 200810213978A CN 101442849 B CN101442849 B CN 101442849B
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Abstract
It is an object of the present invention to provide a transparent conductor exhibiting a small increase in resistance value even when used under high-humidity conditions over long periods of time. A transparent conductor in a preferred embodiment comprises indium tin oxide, an additive component having zinc oxide as a main component thereof, and a resin cured product, the content of the additive component being 0.1 to 50 wt % relative to the total amount of indium tin oxide and the additive component.
Description
Technical field
The present invention relates to transparent conductive body.
Background technology
Transparency electrode is used in the display unit such as LCD, PDP, organic EL, touch panel.These transparency electrodes are made of transparent conductive body mostly, and these transparent conductive bodies are by formation such as indium tin oxides (below, abbreviate " ITO " as).This transparent conductive body, for example known transparent conductive body that has the material shown in the TOHKEMY 2006-202738 communique to form by containing the electroconductive oxide particulate, this electroconductive oxide particulate contains indium oxide, tin oxide, zinc oxide etc.
Summary of the invention
Above-mentioned display unit is used to various purposes in recent years, and wherein, situation about for example being exposed in the adverse circumstances such as high temperature, high humidity is also increasing.Yet, the inventor discusses the back and finds, though above-mentioned existing transparent conductive body is initially low resistance, can work as electric conductor, still, if in high humidity environment, use for a long time, so, compare with initial value, resistance value rises significantly, can not play the effect as electric conductor mostly fully.
Therefore, the present invention In view of the foregoing proposes, and its purpose is, uses the transparent conductive body that the rising of resistance value is also very little for a long time even provide a kind of under super-humid conditions.
In order to achieve the above object, transparent conductive body of the present invention is characterised in that, contain indium tin oxide (ITO), be the adding ingredient and the hardening of resin thing of main component, contain the adding ingredient of 0.1～50 quality % in the total amount of indium tin oxide and adding ingredient with zinc oxide (ZnO).
According to transparent conductive body of the present invention, by in ITO with afore mentioned rules to contain that ratio contains with ZnO be the adding ingredient of main component, thereby make resistance drop be low to moderate the degree that can work as electric conductor, and, even under the situation that is exposed to high humidity environment for a long time, also can reduce the rising of resistance value fully.At this, because existing ITO has the good transparency and low resistance, thereby preferably as the material of transparent conductive body, still, very easily cause resistance to rise because of moisture etc.On the other hand, because ZnO has high resistance, and, on ITO, because of causing resistance, moisture rises easily, thereby, be difficult to usually work as electric conductor individually.Although exist this tendency now, the present invention is by adding the ZnO of ormal weight to transparent conductive body, is surprised to find that the variation of the resistance value that can reduce resistance value simultaneously fully and cause because of humidity.
In the transparent conductive body of the invention described above, preferred adding ingredient is the ZnO that is doped with gallium (Ga) or aluminium (Al).Like this, can reduce the resistance value of adding ingredient self, the result can further reduce the resistance value of transparent conductive body.
In addition, preferred adding ingredient is to be the insulating properties particle of main component with zinc oxide.Because adding ingredient has the shape of such insulating properties particle, thereby, just can obtain to keep low resistance better and reduce the effect that resistance changes by making up with ITO.
And adding ingredient also can be at least a kind the insulating properties particle that is attached with on the surface in aluminium oxide, silicon dioxide and the resin.With respect to the having good stability of temperature and humidity, the resistance that can further suppress the transparent conductive body that causes because of moisture etc. rises as the insulating properties particle of adding ingredient.
According to the invention described above, use for a long time under super-humid conditions even can provide a kind of, the rising of resistance value is also little, and in practicality the enough low transparent conductive body of resistance.
Description of drawings
Fig. 1 is the figure of section constitution of the nesa coating of the model utility ground signal transparent conductive body that uses preferred implementation.
Fig. 2 be model utility be shown in the figure of the section constitution of the nesa coating that obtains in each embodiment and the comparative example.
Fig. 3 is the curve chart with respect to the value of the resistance change rate of the content of ZnO particle (ZnO that Ga mixes).
Embodiment
Below, with reference to accompanying drawing, preferred implementation of the present invention is described.And, in the description of the drawings, represent same key element with prosign, the repetitive description thereof will be omitted.
Fig. 1 is the figure of section constitution of the nesa coating of the model utility ground signal transparent conductive body that uses preferred implementation.As shown in Figure 1, nesa coating 10 possesses base material 14 and the transparency conducting layer 15 of formation on base material 14.In this nesa coating 10, transparency conducting layer 15 is formed by the transparent conductive body of preferred implementation of the present invention.
At first, for base material 14,, just have no particular limits, all can be suitable for as long as constitute by material to visible transparent.For example, the transparent resin film of glass, polyester, polyethylene, polypropylene, PETG (PET) etc., perhaps various transparent plastic substrates etc. all can be suitable for.
On the other hand, transparency conducting layer 15 has the formation that a plurality of ITO particles 11 and ZnO particle 13 disperse in hardening of resin thing 12.That is, transparency conducting layer 15 is formed by the transparent conductive body that contains ITO particle 11, ZnO particle 13 and resin.And transparency conducting layer 15 major parts are made of ITO particle 11 and ZnO particle 13.So, in other words, we can say transparency conducting layer 15 have ITO particle 11 and 13 aggegations of ZnO particle and betwixt the crack dispose the formation of hardening of resin thing 12.
The formation of ZnO particle 13 except situation about only being formed by ZnO, can also list mode shown below.That is, at first, can list the mode of adulterated al in ZnO (Al), gallium (Ga), lithium (Li), fluorine (F), nitrogen (N), transition metal etc.Preferably suitably select the necessary composition that mixes according to the desired characteristic of giving transparency conducting layer 15.For example, by doped with Al or Ga, can reduce the resistivity of transparency conducting layer 15.
Under the situation of these compositions that mix in ZnO, preferably its doping is below the 40 quality % of total amount of above-mentioned adding ingredient, more preferably below the 30 quality %.If doping is too much, then the resistivity except ZnO particle 13 rises, and outside the transmitance of light descended, the effect that the resistance that the inhibition that obtains by interpolation ZnO particle 13 causes because of humidity rises had the inadequate tendency that becomes.
The form of ZnO particle 13 can exemplify out form that is formed by the ZnO monomer and the form of adhering to other composition on the surface of the particle that is formed by the ZnO monomer.In addition, also can be as described above, sneak among the ZnO and the form of adhering to other composition again on the surface of the particle that forms at other composition.These all are the insulating properties particles that contain ZnO with the ratio as main component.
On the surface of the particle that forms by ZnO, adhere to the ZnO particle 13 of the form of other composition, for example can list, on the surface of the nuclear that forms by ZnO, adhere to the form of aluminium oxide or silicon dioxide.Particularly, aluminium oxide or silicon dioxide can cover the surface of the nuclear of ZnO, and these can form a plurality of layers on the surface of the nuclear of ZnO.According to having so the ZnO particle 13 that constitutes, ZnO particle 13 improves with respect to the stability of temperature and humidity, and the resistance that can further suppress the transparency conducting layer 15 that causes because of moisture etc. thus rises.Its main cause can list, because with aluminium oxide or silicon dioxide covering surfaces, thereby the surface passivation of ZnO particle 13, suppressed the change in resistance that causes because of redox; The reactivity that is difficult to be dissolved in water or acid and other composition diminishes; And, the favorable dispersibility of ZnO particle 13 etc.In this case, the amount that preferably covers the aluminium oxide of ZnO or silicon dioxide is 0.1～20 quality % in the total amount of adding ingredient.If the amount of being somebody's turn to do is very few, then can not obtain the coverage effect of aluminium oxide or silicon dioxide fully, if too much, then surface coverage will cause being difficult to obtain the conductive path of 13 on ZnO particle, the result, resistance value might rise, and transmitance might reduce sometimes.
And the resin that ZnO particle 13 has a transparency covers the formation on surface of the nuclear of ZnO.As resin, for example can list polysiloxanes.The particle of the form that the surface of the nuclear of ZnO is covered by polysiloxanes can list NANOFINE-50SD (Sakai chemical industrial company system).If this formation so, can obtain such effect: the bonding force to base material 14 improves, and the feasible contact-making surface with ZnO particle 13 of resin shrinkage that is accompanied by sclerous reaction increases, and, prevent the redox on the surface of ZnO particle 13.The amount of preferred this resin is identical with the situation of above-mentioned silicon dioxide or aluminium oxide etc.
In above-mentioned, if ZnO particle 13 constitute among the ZnO Ga or the Al that mixes below 40%, so, can be in the resistance that reduces transparency conducting layer 15 fully, suppress the increase of the resistance that causes because of moisture etc. well, thereby especially preferred.
The predecessor of preferred ZnO particle 13 directly is 0.005～0.5 μ m, more preferably 0.01～0.08 μ m.If the predecessor footpath is too small,, also might produce the problem of the conductivity decline of environment resistant decline and nesa coating 10 then except being difficult to control the oxygen defect.On the other hand, if excessive, then scattering of light becomes big, and the visuality of nesa coating 10 might descend.And, though the magnitude relationship of the particle of ITO particle 11 and ZnO particle 13 have no particular limits,, the electric conductivity of nesa coating 10 has the tendency that depends on ITO particle 11 greatly.So, when ITO particle 11 during, obtain conductive path easily, and the probability that ZnO particle 13 touches ITO particle 11 becomes big, thereby helps low resistanceization, and obtains high permeability easily greater than ZnO particle 13, thereby more preferably.
In the transparency conducting layer 15, contain ITO particle 11 and ZnO particle 13 with the allotment ratio of following regulation.That is, in the total amount of the adding ingredient of the ITO of formation ITO particle 11 and formation ZnO particle 13, contain the latter's of 0.1～50 quality % adding ingredient.If containing quantity not sufficient 0.1 quality % or surpassing 50 quality % of adding ingredient then compared with the situation in the scope, the resistance of the transparency conducting layer 15 that causes because of moisture etc. rises and becomes big.From more effectively reducing the viewpoint that such resistance rises, more preferably the content of above-mentioned adding ingredient is 1～30 quality %.And if the content of adding ingredient is below the 10 quality %, then the resistance value of transparency conducting layer 15 self also can reduce fully, thereby more effective.
Though transparency conducting layer 15 contains above-mentioned ITO particle 11 and ZnO particle 13, preferred they form the particle shape respectively, for example, preferably not interreaction and form composite oxides etc.But, also can contain some composite oxides that form inevitably because of these particles contact each other etc. etc.
Transparency conducting layer 15 except containing ITO particle 11, ZnO particle 13, also contains hardening of resin thing 12.This hardening of resin thing 12 is configured in the gap of these particles, works as the binder resin that particle is bonded to each other.As long as hardening of resin thing 12 just have no particular limits, and the known thermosetting resin and the hardening thing of ray hardening resin all can be suitable for to visible transparent.For example, can list allyl resin, epoxy resin, polystyrene, Merlon, norbornene resin, fluororesin, urethane resin etc., preferred allyl resin.
Nesa coating 10 with above-mentioned formation for example can be by following manufacture method manufacturing.
That is, at first, prepare above-mentioned ITO particle 11 and ZnO particle 13 respectively, it is disperseed in solvent, obtain dispersion liquid.For solvent, alcohols such as methyl alcohol, ethanol, propyl alcohol, butanols for example, acetone, butanone, methyl iso-butyl ketone (MIBK), cyclohexanone etc. all can be suitable for.In addition, for dispersion, for example can use medium-stirring wet-type pulverizer, container drive medium type wet crushing mill or the Dry-crusher of ball mill, vibrator, planetary ball mill etc. to wait and carry out.
Then, this dispersion liquid is coated on above-mentioned base material 14 grades, from dispersion liquid, volatilized etc., desolvate thereby remove by making solvent.Thus, form ITO particle 11 and 13 dispersions of ZnO particle attached to the particle layer on the base material 14.The coating of dispersion liquid, for example can by contrary roller method, in the same way roller method, knife coating, scrape the skill in using a kitchen knife in cookery, extrusion, spraying process, curtain formula method, gravure roll method, bar type rubbing method, infusion process, contact rubbing method, spin-coating method, milling process, spray-on process and wait and carry out.
, on the particle layer that is formed on the base material 14, dispose other support base material such as PET film more thereafter, use then backer roll etc. on laminating direction to its all pressurization.Thus, make the ITO particle 11 and 13 aggegations of ZnO particle of constituent particle layer, obtain agglutination body.By carrying out such pressurization, can easily obtain interparticle contact area and increase, the effect that conductivity improves.In addition, just can form under the situation of transparent conductive body 15 not pressurizeing, there is no need to carry out such pressurization with enough performances.
After peeling off support base material from the agglutination body that obtains, the agglutination body coating is formed the resin of above-mentioned hardening of resin thing 12 by sclerosis.Thus, resin impregnated is between the ITO particle 11 and ZnO particle 13 that constitute agglutination body.This resin for example can list the monomer and the oligomer that can form hardening of resin thing 12 by sclerosis.For resin, for example can be impregnated in the agglutination body in solvent and the state that forms solution etc. with resin dissolves.
, be impregnated into hardening of resin in agglutination body, form hardening of resin thing 12 thereafter.Can suitably select hardening of resin according to the kind of this resin.For example, be under the situation of thermosetting resin at resin, the duplexer that will be formed with agglutination body on base material 14 is heated to the degree that produces hardening of resin.In addition, be under the situation of ray hardening resin at resin, can produce the light of hardening of resin to the agglutination body irradiation of this duplexer.
Thus, the ITO particle 11 and the ZnO particle 13 that constitute agglutination body are bonding by hardening of resin thing 12, form conductive layer 15, result, the nesa coating 10 that has obtained having above-mentioned formation.
More than, to the nesa coating of preferred implementation and preferred transparency conducting layer (transparent conductive body) and, the manufacture method of nesa coating is illustrated, but the present invention might not be defined in above-mentioned execution mode.
For example, in the above-described embodiment, though have transparency conducting layer 15 is located at formation on the base material 14, nesa coating 10 there is no need to have base material 14, also can only be made of transparency conducting layer 15 under the situation of enough intensity etc. guaranteeing.
In addition, transparency conducting layer 15 except containing above-mentioned ITO particle 11, hardening of resin thing 12 and ZnO particle 13, is not exceedingly reducing in the scope of effect of the present invention, also can also contain other composition according to desired performance.In addition, nesa coating 10 also can also have the layer except that base material 14 and transparency conducting layer 15.And, the manufacture method of nesa coating is not limited to as described in the above-mentioned execution mode, after the agglutination body that forms ITO particle 11 and ZnO particle 13, coating resin hardening thing 12 forms the method for the resin of usefulness, also can these particles be scattered in the mixed liquor that forms in the resin by preparing in advance, again this mixed liquor is coated the method for base material 14 grades, to form nesa coating.Except nesa coating shown in Figure 1 10, according to the manufacture method of nesa coating, perhaps, the kind of used resin or its proterties etc. also can access nesa coating shown in Figure 2 as described later 10 sometimes.
(embodiment)
Below, illustrate in greater detail the present invention with embodiment, but the present invention is not limited to these embodiment.
(embodiment 1～9, comparative example 1～4)
In embodiment 1～9 and the comparative example 1～4, according to the content of the ZnO particle shown in the table 1 (representing content) with respect to the ZnO particle of the total of ITO particle and ZnO particle with quality %, allotment ITO (ITO particle) and adding ingredient (ZnO particle) are made nesa coating.The situation of ITO particle is only used in comparative example 1 (ZnO particle 0%) expression, and the situation of ZnO particle is only used in comparative example 4 (ZnO particle 100%) expression.The manufacture method of nesa coating is as follows.
(making of nesa coating)
At first, the ITO particle (predecessor average grain diameter=0.03 μ m) that will have the above average grain diameter of 20nm is scattered in the ethanol of 30g, to ZnO (the ZnO that Ga mix of formed solution interpolation as the Ga doping of ZnO particle, plain boiled water chemistry system, following, resistance value (powder intrinsic resistance)=500 Ω cm of GK40, predecessor average grain diameter=0.03 μ m), make dispersion liquid (below be labeled as the ITO-ZnO particle).At this, add up to the ITO particle and the ZnO particle that use 10g.
Subsequently, the dispersion liquid that obtains is coated on the PET film, from dispersion liquid, removes ethanol then.Then, on the layer that obtains after the coating fluid drying, load other PET film, with backer roll to all pressurizations.Thus, obtain the agglutination body that ITO particle and ZnO particles aggregate form.
Peel off a side PET film from agglutination body after, the mixed liquor that unhardened allyl resin, butanone (Northeast chemistry system) and vinyltriethoxysilane (SHIN-ETSU HANTOTAI's chemistry system) are mixed is infiltrated in this agglutination body.As unhardened allyl resin, use the solution that contains acrylic polymer (Xin Zhong village chemistry system), acrylic monomers (Xin Zhong village chemistry system) and Photoepolymerizationinitiater initiater.
, the mixed liquor drying of in agglutination body infiltrating after, by agglutination body carried out UV shine, thereby make allyl resin sclerosis, obtain nesa coating thus thereafter.Fig. 2 is the figure of the section constitution of the nesa coating that obtains in each embodiment of model utility ground signal and the comparative example.As shown in Figure 2, these nesa coatings have the structure of mixing the intermediate layer 15a that configuration between the transparency conducting layer 15 that is present in the hardening of resin thing 12 and the base material 14 forms by hardening of resin thing 12 at ITO particle 11 and ZnO particle 13.Owing to have such structure, thereby the most surperficial of base material 14 only contact with hardening of resin thing 12, and the combining closely property raising of base material 14 and transparency conducting layer 15 can reduce the rising of resistance value.And, owing to the hardening of resin thing 12 in intermediate layer 15a and the transparency conducting layer 15 becomes one, thereby also suppressed the rising of resistance value.
(measurement of resistance value and resistance change rate)
At first, respectively the nesa coating that obtains in each embodiment and the comparative example is measured its resistance value (Ω/) with four-terminal method.Then, carry out each nesa coating is positioned over environmental test with 650 hours environmental experiment in electric furnace (60 ℃, 95%RH).Then, the resistance value of each nesa coating after the experiment with measuring similarly.Subsequently,, obtain the variation of the resistance value of each nesa coating before and after the environmental test based on resulting result, and with it as resistance change rate (%).
Resulting result such as table 1 and shown in Figure 3.Fig. 3 is the curve chart with respect to the value of the resistance change rate of the content of ZnO particle (ZnO that Ga mixes) that the result from embodiment 1～9 and comparative example 1～4 obtains.Wherein, in table 1, the resistance value before " 0h " on resistance value hurdle expression environmental test, the resistance value after " 650h " expression environmental test.And the resistance of the nesa coating of "-" expression comparative example 4 of comparative example 4 increases to the degree that four-terminal method can't be measured after environmental test.
(table 1)
As table 1 and shown in Figure 3, can confirm, with only use the ITO particle or only use the situation (comparative example 1,4) of ZnO particle, perhaps, the content of ZnO is that the extraneous situation (comparative example 2,3) of 0.1～50 quality % is compared, the nesa coating of the embodiment 1～9 of the ZnO particle by adding 0.1～50 quality % except the ITO particle can reduce resistance change rate significantly.So, even clear and definite under the condition of high humidity the long-time nesa coating that uses embodiment 1～9, the amplification of resistance value is also little.And clear and definite content at ZnO is that resistance change rate especially is low to moderate below 1.7% under the situation of 1～30 quality %, even use for more time, also can suppress the increase of resistance value.And clear and definite is under the situation of 3～10 quality % at the content of ZnO especially, and resistance value self also is low to moderate 1000 Ω/below the, and is especially preferred in the purposes of touch panel etc.
(embodiment 10～16)
(making of nesa coating)
Except using the various ZnO shown in the table 2 as the ZnO particle, and, with the value shown in the table 2 as the containing outside the ratio of ZnO particle, with the above-mentioned nesa coating of similarly making embodiment 10～16.And, in the table 2, the NANOFINE75 of " ZnO that aluminium oxide covers " expression circle chemical industrial company system, " add the ZnO of crosslinking agent " and represent the NANOFINE P-1 (being untreated in predecessor average grain diameter=0.02 μ m, surface) of Sakai chemical industrial company system, the SC-18 (predecessor average grain diameter=0.02 μ m, resistance value (powder intrinsic resistance)=500 Ω m) of " ZnO that Al mixes " expression Sakai chemical industrial company system, the ZnO particle that the nothing that " undoped ZnO " expression is only formed by ZnO is added.In addition, for example, " ZnO10% that aluminium oxide covers " in the table 2 represents that the total with respect to ITO particle and this ZnO particle contains 10 quality % " ZnO that aluminium oxide covers " as the ZnO particle, and the statement of other content (%) in the table 2 is also identical.
(resistance value and, the mensuration of resistance change rate)
With above-mentioned same, for each nesa coating measured resistance value and resistance change rate of obtaining among the embodiment 10～16.The result who is contrasting the foregoing description 5 in table 2 represents resulting result.
(table 2)
As shown in table 2, can confirm that even using under the situation of various ZnO as the ZnO particle, compare with the situation of above-mentioned comparative example 1～4, allotment ratio combination ITO particle and ZnO particle by with regulation also can reduce change in resistance significantly.So, even clear and definite under super-humid conditions the long-time nesa coating that uses embodiment 10～16, the amplification of resistance value is also little.
Claims (4)
1. a transparent conductive body is characterized in that,
Contain indium tin oxide particle, contain the above zinc oxide of 50 quality % adding ingredient particle and to the hardening of resin thing of visible transparent,
In the total amount of indium tin oxide and described adding ingredient, contain the described adding ingredient of 0.1～50 quality %.
2. transparent conductive body according to claim 1 is characterized in that,
Described adding ingredient is the zinc oxide that is doped with gallium or aluminium.
3. transparent conductive body according to claim 1 is characterized in that,
Described adding ingredient is the insulating properties particle that contains the above zinc oxide of 50 quality %.
4. according to each described transparent conductive body in the claim 1～3, it is characterized in that,
Described adding ingredient is at least a kind the insulating properties particle that is attached with on the surface in aluminium oxide, silicon dioxide and the polyorganosiloxane resin.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007224589 | 2007-08-30 | ||
| JP2007-224589 | 2007-08-30 | ||
| JP2007224589 | 2007-08-30 | ||
| JP2008209293A JP2009076449A (en) | 2007-08-30 | 2008-08-15 | Transparent conductor |
| JP2008-209293 | 2008-08-15 | ||
| JP2008209293 | 2008-08-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101442849A CN101442849A (en) | 2009-05-27 |
| CN101442849B true CN101442849B (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102139780A Expired - Fee Related CN101442849B (en) | 2007-08-30 | 2008-09-01 | Transparent conductor |
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| JP (1) | JP2009076449A (en) |
| CN (1) | CN101442849B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20140042318A (en) * | 2012-09-28 | 2014-04-07 | 삼성코닝정밀소재 주식회사 | Transparent conductive substrate and touch panel having the same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3520785B2 (en) * | 1998-02-20 | 2004-04-19 | 堺化学工業株式会社 | Zinc oxide particle composition with suppressed surface activity, method for producing the same, and cosmetic containing the composition |
| JP2001185366A (en) * | 1999-12-24 | 2001-07-06 | Teikoku Tsushin Kogyo Co Ltd | Electroluminescent sheet |
| JP4465812B2 (en) * | 2000-05-19 | 2010-05-26 | Ｔｄｋ株式会社 | Functional membrane |
| JP4756738B2 (en) * | 2000-12-27 | 2011-08-24 | ハクスイテック株式会社 | Zinc oxide fine particles for UV shielding |
| JP4923345B2 (en) * | 2001-07-13 | 2012-04-25 | 大日本印刷株式会社 | Coating composition, coating film thereof, antireflection film, and antireflection film |
| JP2006202738A (en) * | 2004-12-21 | 2006-08-03 | Sumitomo Metal Mining Co Ltd | Dispersed electroluminescence element and manufacturing method of the same |
| JP2006310195A (en) * | 2005-04-28 | 2006-11-09 | Tdk Corp | Transparent conductor |
| JP4525583B2 (en) * | 2005-12-15 | 2010-08-18 | 東レ・ファインケミカル株式会社 | Method for producing zinc oxide dispersed paste |
| JP5414152B2 (en) * | 2007-03-23 | 2014-02-12 | 三菱マテリアル株式会社 | Composition for forming transparent layer having ultraviolet heat ray shielding property, transparent layer and use thereof |
-
2008
- 2008-08-15 JP JP2008209293A patent/JP2009076449A/en active Pending
- 2008-09-01 CN CN2008102139780A patent/CN101442849B/en not_active Expired - Fee Related
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| CN101442849A (en) | 2009-05-27 |
| JP2009076449A (en) | 2009-04-09 |
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